3818| 4
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Q235 在950°時候的屈服強度大概是多少 |
點評
我按照 10mpa 來計算 總可以吧
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Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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